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12421690 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12421690: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include shape: SQUARE, width: 16.940 INCHES MINIMUM AND 17.060 INCHES MAXIMUM IN, length: 17.940 INCHES MINIMUM AND 18.060 INCHES MAXIMUM IN, material: ALUMINUM ALLOY 5052, body_thickness: 0.125 INCHES NOMINAL IN, mounting_hole_type: UNABLE TO DECODE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-589-9502, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
12421690
NSN: 5340-01-589-9502
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
shapeSQUARE
width16.940 INCHES MINIMUM AND 17.060 INCHES MAXIMUM IN
length17.940 INCHES MINIMUM AND 18.060 INCHES MAXIMUM IN
materialALUMINUM ALLOY 5052
body_thickness0.125 INCHES NOMINAL IN
mounting_hole_typeUNABLE TO DECODE
securing_device_typeTHREADED FASTENER
mounting_hole_diameterUNABLE TO DECODE
peripheral_shape_styleRECTANGLE, MULTI HOLES
end_item_identification2320-01-552-7749 TRUCK, VAN
hole_quantity_along_width16
hole_quantity_along_length16
NSN5340-01-589-9502
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12421690 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH: 1.5 INCHES NOMINAL IN
•
LENGTH: 17.940 INCHES MINIMUM AND 18.060 INCHES MAXIMUM IN
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 2.0 INCHES NOMINAL IN
•
HOLE QUANTITY ALONG LENGTH: 16
•
DISTANCE BETWEEN HOLES ALONG WIDTH: 2.0 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B209 ASSN STD SINGLE MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: UNABLE TO DECODE
•
SHAPE: SQUARE
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH1.5 INCHES NOMINAL IN
LENGTH17.940 INCHES MINIMUM AND 18.060 INCHES MAXIMUM IN
DISTANCE BETWEEN HOLES ALONG LENGTH2.0 INCHES NOMINAL IN
HOLE QUANTITY ALONG LENGTH16
DISTANCE BETWEEN HOLES ALONG WIDTH2.0 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B209 ASSN STD SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETERUNABLE TO DECODE
SHAPESQUARE
CROSS-SECTIONAL SHAPE STYLEFLAT
SECURING DEVICE TYPETHREADED FASTENER
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12421690?
12421690 is a COVER,ACCESS.
What is the NSN for 12421690?
12421690 is cataloged in the U.S. Government catalog under NSN 5340-01-589-9502. This indicates validated use in U.S. government and defense supply chains.
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